Overhead transportation system.



J. F. MONTINE. OVERHEAD TRANSPORTATION SYSTEM.

APPLICATION mmuov. 23. ms.

Patented Nov. 13, 1917.

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J. F. MONTINE.

OVERHEAD TRANSPORTATION SYSTEM.

APPLICATION FILED NOV. 23/1916.

Patented Nov. 13, 1917.

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INVENTOR.

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Patented Nov. 13, 1917.

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ter 47.

. tition 49 on the inside.

Fig. 6.

has a circular boss through which passes a vertical pin 41 on which latter is mounted the hub 42 of a star wheel having six radial arms, three alternating ones 46 of said arms being positioned at a lower level than the other three denoted by the reference charac- The hub 42 is hollow to house a spring 44 coiled around the pin 41 and held by a nut 45 provided with a washer 45. The star wheel is free to turn on the pin 41 but it can be rotated only by being forced, the spring 44 holding it normally stationary. Each arm 47 has a bevel-edged protuberance 47 on its top, spaced the same distance from the center of the star wheel.

On each side of the flange 39, and integral with the web 38, are two frusto-conical members 48 having vertical axes and being open at the top and bottom, with a transverse par- Each member 48 forms an insulating unit for a vertical pin axially positioned therein and supported by the partition 49 and an assembly of insulating washers the same as the device in Above the partition 49, each member 48 may be packed with an insulating compound to prevent the entry of water. The lower end of the pin 50 is positioned to come in contact with any of the protuberances 47 that may approach it when the star wheel is rotated. it will be noted in Fig. 2 that the pins 50 are set sixty degrees apart to correspond to the spacing of the arms 46 and 47. Thus, when one pin 50 is touched by a protuberance 47, the other pin 50 remains free, and vice versa. The spring 44 also assures proper contact between the pins and the protuberances.

The star wheel and coiiperating parts just described constitute a switch which controls the motor 11 in a manner to be presently described.

T he following device is provided for actuating the star wheel or switch assembly:

On a pole 16 positioned alongside the track is fastened a socket member 53 having a base through which pass fasteners 52" which secure said member to the pole. In the socket is fixed, by a set screw 54, a horizontal bracket arm 51 having a downturned outer end 55, on which latter is adjustably mounted and secured by a set screw 56*, a collar 56 carrying an elongated, hood-like member 57 open at one end and closed at the other end. Above its open end, the hood has a boss 58 through which a pin 59 asses, said pin carrying a block 60 which is ree to turn on the pin. One side of the block 60 carries a wing 61: which is in the pat-h of the arms 46 and 47 of the star wheel, and back of the wing, the block has a finger 62 projecting into the hood 57'. To the outer end of the finger 62 is fixed one end of a coiled spring 63 housed in and anchored at its otherend to the hood. It will be seen that the wing 61 serves as an abutment to turn the star wheel when it is struck by the arms 46 of the latter. The spring 63 normally holds the wing projecting obliquely into the path of the star wheel arms 46, and as the wing is pivoted it is free to swing back to the dotted line position in Fig. '2 until it engages a stop 64 on the boss 58. A swing through a greater are in the opposite direction is however possible as there is no stop to op pose such swing. The spring 63 always restores the wing to its normal position.

The wiring of the switch mechanism is as follows:

Conductors 65 and 66 lead from the tact pins 50 to the base of a double switch 67 located at any convenient and sheltered place on the receptacle 10. The conductors 65 and 66 are connected, respectively, to contacts 68 and 69 on one side of the switch. From a contact 68 alongside the contact 68 a conductor 70 passes to one of the terminals of the motor 11, and from a contact 69 alongside the contact 69 a conductor 7 3 passes to the other terminal of the motor. The first-mentioned motor terminal is also connected by a conductor 7 0 to the contact 71 of a single pole switch 72, the other contact 71* of said switch being con nected to the second motor terminal by a conductor 7 3*. From the switch arm or lever 72 a conductor 74 connects with the cur rent collector 14 The operating of the motor-controlling mechanism may be summarized as follows:

Referring to Fig. 2, one of the contacts 47 is engaging the pin 50 from which the conductor 65 leads. The blades of the switch 67 are connecting the contacts 68 and 68, and the switch lever 72 is on the contact 71. lVith the parts in this position, the motor'is running to propel the truck, the circuit being from current collector 14 to conductor 74, switch 72, conductor 7 3*, motor 11, conductor 7 0, switch 67, conductor 65, pin 50, contact 47 and thence to the truck frame, the return being through the cable 13 on which the truck runs. lVhen the truck arrives at the stopping place, the abutment 61 being here located, the switch mechanism is operated to break the motor circuit. This is done by the forwardly extending arm 46 shown in Fig. 2 striking the abutment 61, whereupon the star wheel is turned to engage the aforementioned contact 47 from the pin 50, thereby breaking the motor circuit. To start the motor, the star Wheel is turned manually to again bring one of the contacts 47 on the pin 50, in which position of the star wheel one of the arms 46 is standing straight out, as shown in Fig. 2, to be intercepted by the abutment 61 at the next stopping place or station. It will therefore be seen that alternate ones of the star wheel arms are switch arms and the other arms are switch conpole actuating arms, the arms 47 being the switch arms and the arms 46'being the actuating arms. 'When the active arm 46 strikes the abutment 61 the latter swings back, as shown dotted until it engages the stop 64,.and the star wheel is then turned far enough to take to conductor 74;, switch 72, conductor 70*,

motor 11, conductor 73, switch 67 conductor 66, pin 50, and contact 47. Two'sets ofswitchtripping wings 61 willbe provided, one set acting when the carriage moves in one direction, and the other set when the carriage is running in the opposite 7 direction.

1. The combination of a track, an .electric- 7 .motor driven truck mounted for travel on said track, a pair of switch contacts carried by the'truck to which contacts the motor circuit is connected, a reversing switch mech anism for the motor circuit, a rotatable membercarried by the truck and having radial'arm's, alternate ones of said arms having contacts adapted to engage the aforesaid switch contacts and the other arms being the actuating meansof therotatable member, the

spacing of the switch contacts corresponding to the spacing of the arms,'and an abutment mounted alongside the track in the path of the aforesaid actuating arms.

2. The combination of a track, an electricmotor driven truck, mounted forqtravel on qop ies of this patent may be obtained for said track,a pair of switchrcontacts carried by the truck to which contactsthe motor cir- I cuit is connected, a'reversing switch mechanism for the motor circuit, a rotatable member carried bythe truck and having radlal arms, alternateiones of said arms having contacts adapted. to engage the aforesaid switch contactsand'the other arms being the actuating means of the rotatable member and located in a. different vertical plane from that ofthe first-mentioned arms, the spacing 'of the switch contacts corresponding to'the spacing of'the arms, and an abutment mount= ed alongside the track in the pathv of the aforesaid actuating arms.

3. The combination of a track, an electric- V motor driven truck' mounted for travel on said track, a pair of switch contacts carried by the truck to which contacts the motor circuit is connected, a reversing-switch mechanism for the motor circuit, arotatable mem ber carried by the truck and comprising a hub having radial arms, alternate ones of.

said arms having contacts adapted to engage arms being the actuating means of the rotatable member, the' spacing of the'switch con tacts corresponding to the spacing of the arms, a pivot pin passing through the hub, said hub having a bottom'opening, a spring the aforesaid switch contactsand the other seating in said opening and coiled around the pivot, an abutment on the pivot pin, between which abutment and the hub" the carrying the pivot pin, and an abutment mounted alongside the track'in the the aforesaid actuating arms, 4. The combination of a track, an electric motor-driven truck mounted for travel on spring is located, a bracket arm on the truck path of I said track, a pair of switch contacts to which i the motor circuit is connected, ,a bracket arm onthe truck and having tubular members provided with partitions carrying the contacts, the same being housed in the members below the partitions, a reversing switch Q mechanism for the motor circuit, a rotatable 7 member carried by the truck and having ra-' i dial arms, alternate o'nes of said arms hav mg contacts adapted to engage the aforesald' switch contacts and the other arms being the actuating means of the rotatable m e. H

spacing of the switch contacts corres'p onding to the spacing of the arms, and an abutpath of the aforesaid actuating arms.

. p In. testimony whereof I afiix my signature;

' JOSEPH F. MQNTIN five cents each,'by addressingthe Commissioner of reams,

' W ashington, 15.0..

i a ment mounted. alongsidethe track in the 

